What issues divided the United States in the 1920 election?

The 1920 general election featured a greatly divided country on issues ranging on race, healthcare, foreign policy, and reactions to reforms brought on by the Progressive Era. It was also the first election women could vote; however, many issues that affected the race had to do with long standing debate and the general mood after a tumultuous World War and the lingering effects of the Flu pandemic that first struck in 1918.